Batch Size Variance is posted against WO completed eventhough we do not have any variance

Summary:

Batch Size Variance is posted against WO completed even though we do not have any variance.

You can see below that: in 'Review Work Order Costs' where we do not any meaningful use case of 'Variance Percentage' calculated against the closed WO.

We are not able to understand this information used for what? what decision to make it?

What is the meaning of 'Variance Amounts', which business use case we trying to solve here; what decision we need to take based on this.

This is causing a lot of confusion. Can you please explain use case here?

Batch Size Variance is posted even though there is not variance? what is the significance.